Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Inrush at Lofthouse Colliery Yorkshire (report)
Report on the causes of, and circumstances attending, the inrush which occured at Lofthouse Colliery, Yorkshire, on 21 March 1973. 26 page report with loose Plans No. 1-4 & Plates 3-5 in pocket at back.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.